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Silencing or fueling metastasis with VEGF inhibitors: antiangiogenesis revisited
Sonja Loges1, Massimiliano Mazzone, Philipp Hohensinner
1Vesalius Research Center, VIB, B-3000 Leuven, Belgium.
Abstract:
Clinical practice reveals that therapy with angiogenesis inhibitors often does not prolong survival of cancer patients for more than months, because tumors elicit evasive resistance. In this issue of Cancer Cell, two papers report that VEGF inhibitors reduce primary tumor growth but promote tumor invasiveness and metastasis. These perplexing findings help to explain resistance to these drugs but raise pertinent questions of how to best treat cancer patients with antiangiogenic medicine in the future. We discuss here how VEGF inhibitors can induce such divergent effects on primary tumor growth and metastasis.
Insights
Vascular Endothelial Growth Factor (VEGF) inhibitors slow primary tumor growth but may increase cancer invasiveness and metastasis. This explains drug resistance and prompts new treatment strategies for antiangiogenic medicine.
Area of Science:
- Oncology
- Cancer Biology
- Translational Medicine
Background:
- Angiogenesis inhibitors are used in cancer therapy but often show limited survival benefits due to tumor resistance.
- Tumor cells develop evasive resistance mechanisms against antiangiogenic therapies.
Discussion:
- VEGF inhibitors reduce primary tumor growth but paradoxically enhance tumor invasiveness and metastasis.
- These divergent effects contribute to understanding resistance to antiangiogenic drugs.
Key Insights:
- VEGF inhibitors can promote tumor spread, complicating cancer treatment.
- Understanding the dual role of VEGF inhibitors is crucial for effective cancer therapy.
Outlook:
- Future research should focus on optimizing antiangiogenic therapy to overcome resistance and prevent metastasis.
- Developing novel therapeutic strategies that combine VEGF inhibition with other treatments is essential.
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